thermodynamic parameters, from which the changes in standard enthalpy (∆H0, kJ/mol), standard entropy (∆S0, kJ/mol K), and standard free energy (∆G0, kJ/mol) due to the transfer of unit mole of solute from solution onto

the solid-liquid interface can be obtained. The values of ∆H0 and ∆S0 were calculated using the following equations [27]: (8) (9) where R (8.314 J/mol K) is the universal gas constant, T (K) is the absolute solution temperature, Flavopiridol (Alvocidib) and K d is distribution adsorption coefficient calculated from the following equation [27]: (10) where C o is the initial concentration (mg/L), C e is the equilibration concentration after adsorption (mg/L), V is the volume of the solution (L), and m is the dose of the membrane (g). From Eqs. (8) and (9), the van’t Hoff equation was obtained as: (11) As shown in Figure 5, the plot of lnKd versus 1/T gave a straight line with a slope of ∆H0 and an intercept of ∆S0. The values of these thermodynamic parameters measured at different temperatures are listed in Table 4. Figure 5 Plot of lnK d versus 1/T for the estimation of thermodynamic parameters. Table 4 Adsorption thermodynamics Target compound Temperature (K) ∆G 0 (kJ/mol) ∆H 0 (kJ/mol) ∆S 0 (kJ/mol K) DES 273 −18.38 −25.04 −0.025 288 −17.47 298 −17.52 323 −17.05 DE 273 −16.57 −23.42 −0.024 288 −16.52 298 −16.56 323 −15.31 HEX 273 −15.87 −17.43 −0.006 288 −15.86 298 −15.